6.45 Computing: Roots of Equations

7.10 Electronic Design and Signals

7.35 Your Own Optics Laboratory

8.0 The Hydraulic Ram

8.25 Marketing in Action: Launching Neptune

(to 8.50)

Ben Thomas and Carol Chell say Hallo Again with songs, games and play ideas. a we could talk to the animals, just imagine it, chatting to a chimp in chimpanzee....' Story:
'Quack!' Said the Billy-goat by CHARLES CAUSLEY
Illustrated by BARBARA FIRTH
Musicians JONATHAN COHEN WILL HILL, PHIL TODD Director FAY WOOLF
Editor CYNTHIA FELGATE

with Bryan Murray and Lynne Kieran
What's cooking in the Sikh 'free kitchen', and why did a Roman soldier cut his coat in half?
Script editor NOEL VINCENT director CELIA THOMSON Producer JUDY MERRY BBC North West

A series in which viewers are united by television in a simple service of prayer and reflection.
The programme is introduced by Margaret Collingwood from the home of David Humphries in Capel St Mary, near Ipswich. Rosemary Wakelin bases her meditation on St Mark 2, vv 1-12, and asks what healing really means.
Mrector MARK WADDINGTON Series producer DAVID CRAIG

Morgan Khan , 28 years old, has come a long way since washing dishes in a hamburger bar. His record company is probably the most successful dance label m Britain with an annual turn-over of eight million Pounds.
Khan's success has been based on the idea of bringing together popular American disco sounds - previously only available by import at highly inflated prices - and Putting them on to cheaper compilation albums called
Street Sound. He, with a staff of 12, operates from a semi-detached house in Ealing.
In today's programme Anita Aggarwal talks to him about his achievement.
Music is by Ghulam All who sings a ghazal.
Proáucer BISH MEHAY
Executive producer ASHOK RAMPAL BBC Pebble Mill

'Do-it-yourself science presented by Carol Mather and Professor Ian Fells

Twenty programmes presented by Lilly Lembo Lambert and Enrico Verdecchia

The Romans gave Orvieto its name, Urbs vetus, after they had conquered and destroyed it in 265 BC.
(R) (e)
(Complementary programme on Radio 4 VHF/FM at 5.30pm)

A sequence of yoga movements that builds up day by day into a routine.
The Knee and Thigh Stretch and Ankle Rotations Director PAULA GILDER
Producer PETER RAMSDEN (R) (e)

Partners in Education (e)

with Klaus Romer
(Shown last Tuesday on BBC2) (e)

A chance to see recent BBC programmes, with sign-language and subtitles for the deaf and hard-of-hearing. Today: Favourite Walks A Dales walk with Thomas Lawlor
Whenever he gets the chance, Thomas Lawlor escapes from a busy life on the opera stage to recharge his lungs in the air of the Yorkshire Dales. In Malhamdale his enjoyment stems from discovering how the scenery was formed from the tricks of nature. Photography MAX SAMETT
Producer MIKE WEATHERLEY
(e)

with Philip Wrixon Dan Cherrington Leslie Cottington and Claire Powell Producers
KEN POLLOCK. MARTIN SMALL
Executive producer JOHN KENYON BBC Pebble Mill

MICHAEL FISH

with Donald MacCormick
Starting with News Summary The weekly programme of lively discussion - making the news with those in power and hearing the views of those who challenge them. Reporter VIVIAN WHITE Producers VANESSA DOWELL and CATHY HOLT
Deputy editor COLIN STANBRIDGE Editor PAUL NORRIS

by Jane Hollowood and Mark Wheatley.
'People round here don't use the proper forces of law and order, James. They dish out their own punishments'.
(Ceefax Subtitles)

FA Cup Fifth Round
Wimbledon v Everton
Introduced by Jimmy Hill Ten years ago Wimbledon were non-league nobodies.
Now they're not only rubbing shoulders with the elite in the championship, but they have knocked over quite a few too. Not Everton though - they have taken the full six points off 'the Dons' this season.
But this is the Cup, which for Everton represents one leg of the double that was achieved last year by the Red half of Merseyside.
It's a tie with a whiff of Cup history about it, whoever wins. Everton have played in the last three finals and now go for a record fourth in a row. Wimbledon's target is to reach the quarter-finals for the first time. This same fifth round two years ago is the furthest they have gone.
Commentator JOHN MOTSON Series producer JOHN SHREWSBURY Editor BOB ABRAHAMS

The European Indoor Championships from Lievin, France Live coverage of this afternoon's finals. Britain's main hopes rest with LINFORD CHRISTIE - defending the 200m title he won in Madrid last Year; TODD BENNETT in the 400m; JONATHAN RIDGEON with COLIN JACKSON in the 60m hurdles; and Scotland's YVONNE MURRAY , who's won silver and bronze in these championships before, in the 3,000m.
Introduced by DAVID ICKE
Commentators DAVID COLEMAN RON PICKERING , STUART STOREY

Introduced by Hugh Scully
A girl's collection of dolls and a rare French automaton are among the treasures brought for evaluation by the experts when they visit Carlisle.
Directors
ANDY BATTEN-FOSTER. IAN PAUL
Producer CHRISTOPHER LEWIS BBC Bristol
* CEEFAX SUBTITLES

A series of seven programmes which suggests ways to improve your own mental health.
1: The Tranquilliser Trap People who have learned to survive without tranquillisers describe how they did it.
Producer JOHN BROOKE
Series producer SUZANNE DAVIES (e) For free booklet send a large 24p sae to: [address removed]
0 INFO: page 77

with Jan Leeming Weather

from Shetland
Another chance to see the programme from this beautiful and remote part of the British Isles.
Magnus Magnusson meets JOHN MANSON , who returned to Shetland after many years to help liaise between the islanders and the oil men; and LOWRIE LEASK tells of the life of the crofter. RHODA BUTLER , a local poet, talks about her feelings for the dialect and the place.
People came from all over the outlying islands to sing in the Muckle Kirk in Lerwick, at one of the first television outside broadcasts made in Shetland. Hymns:
Love divine, all loves excelling (Hyfrydol); Da Loard's my hird
(Crimond); All people that on earth do dweU (Old Hundredth); Behold! the mountain of the Lord (Glasgow); Come together; Blest be the everlasting God (Bishopthorpe);
To God be the glory; Glory be to God the Father (Regent Square) Conductor JAMES HALCROW Producer DAVID KREMER Series producer
STEPHEN WHITTLE (R)
Top Ten Hymns, record or cassette REC/ZCM 556; Top Twenty Hymns, compact disc BBC CD 579; video, same title, BBCV/B 8500, from retailers
* CEEFAX SUBTITLES

by ROY CLARKE starring Michael Aldridge Bill Owen , Peter Sallis guest appearance by Richard Vernon with Jane Freeman
Joe Gladwin , Kathy Staff in Go with the Flow
Despite Clegg's disturbing experience with two young evangelists, Seymour decides it's s time to do something worthwhile and puts his talents at the disposal of the local vicar.
MUSIC RONNIE HAZLEHURST Studio lighting PETER SMEE
Studio sound ALAN STOKES videotape editor IAN WILUAMS Designer STEPHAN PACZAI Produced and directed by ALAN J. w. BELL
*CEEFAX SUBTITLES

A 12-part series starring Nerys Hughes.
1: The Appointed Hour by MICHAEL ROBARTES
I've left everything behind me ... my job, my home, to start a new life in Glanmor.'
Designer GERALD MURPHY
Executive producer JULIA SMITH Producer PETER EDWARDS
Directed by MATTHEW ROBINSON BBC Wales
0 FEATURE: page 4 *CEEFAX SUBTITLES

with Magnus Magnusson
Four contenders from London and the south east seek a place in the semi-finals. They are the guests of the Royal Army Educational Corps at Eltham Palace.
Denise Latimer-Sayer (retired secretary)
The life and poetry of Lord Byron
Georges Renard
(postal executive)
Republican Spain and the Civil War, 1931-39
Alison Kelly (freelance lecturer and writer) The life and work of Thomas Chippendale Colin Edgar
(local government valuer) The Falkland Islands, 1750-1982
Lighting DENNIS BUTCHER
Assistant producer MARY CRAIG Director DAVID MITCHELL Producer PETER MASSEY

Presented by Esther Rantzen Consumer advice, misprints, mishaps and real-life humour drawn from the letters you send each week.
With Gavin Campbell Doc Cox , Adrian Mills Grant Baynham
Director BOB MARSLAND
Producer ESTHER RANTZEN Editor JOHN MORRELL

from Wembley
Lloyd Honeyghan (champion) v Johnny Bumphus (challenger)

Britain's Lloyd Honeyghan makes his first defence of the world welterweight title he won in sensational fashion against Don Curry last September. Honeyghan is unbeaten in 28 fights, but he still faces formidable opposition tonight in Bumphus, the six-feet-tall southpaw from the USA, who's won all but one of his 30 fights, 21 inside the distance. Desmond Lynam introduces this evening's contest, scheduled for 12 rounds, and looks back at a busy sporting afternoon.

with Jan Leeming Weather

A three-part Everyman series exploring the impact of Christianity on South
America, 500 years after the conquistadores. 2: The City -
Battle of the Gods
Friday night fever in the cities of Brazil is not so much about disco-dancing as spirittrancing. It is when the 30 million practitioners of Umbanda, a voodo-like cult that started this century, perform their strange rites. Umbanda, a synthesis of African and Amerindian gods with Catholicism, is Brazil's fastest-growing religion. At spiritist centres, like those run by Abraham in the slums of Rio, or Marilda or on luxurious Governor's Island, possession states are used to grant favours, cure illness or lift curses. The Catholic
Church, once vehemently anti-Umbanda, now tolerates it. But for the new evangelical churches, toleration is an anathema: their Friday night services are a spectacle of mass exorcism, a battle between God and the Devil.
Film cameraman PAUL REED Film editor IAN FARR Assistant producer
MARGARET MAGNUSSON
Everyman editor DANIEL WOLF Producer JOHN PAUL DAVIDSON

Last of six programmes Gatwick
'An airport is a machine for processing people.'
Jane Priestman 's job, as the Architecture and Design Manager of the British
Airports Authority, is to ensure that all the parts of that 'machine' - from litter bins to lounges - make the process a tolerable one. Presented by Barty Philips
Series producer IAN WOOLF
Producer SAM BERISFORD (R) (e)
For viewer's guide: please send 75p cheque or PO to: [address removed]